The Montgrí Castle (Catalan: Castell del Montgrí) is a historical edifice in Torroella de Montgrí, Catalonia, Spain, built between 1294 and 1301. Its reason to be was the existing conflict between the counts of Empúries - who ruled over most of the area around the town - and the counts of Barcelona, the most powerful of Catalonia at that time, who also had great power over the Mediterranean.

In order to control the moves of the counts of Empuriés, the court of Barcelona commanded Bernat de Llabià, the governor of the Royal town of Torroella de Montgrí, to supervise the building of a fortress on top of the Montgrí mountain. Work started in 1294 but the fortress was never completed as is obvious today. After those days, the fortress has lost its strategic value but has instead become a symbol of the region.